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Re: ?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg120818] Re: ?
  • From: Tomas Garza <tgarza10 at msn.com>
  • Date: Thu, 11 Aug 2011 05:13:48 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <201108101047.GAA26230@smc.vnet.net>

Try
In[1]:= x/.{x->0.49454545}Out[1]= 0.494545
-Tomas
> Date: Wed, 10 Aug 2011 06:47:21 -0400
> From: david.kirkby at onetel.net
> Subject: ?
> To: mathgroup at smc.vnet.net
>
> The output of FindRoot[] when trying to find a root is like:
>
> {x -> 0.49454545}
>
> How can I convert that list, into the number 0.49454545?
>
> In[1]:= FindRoot[x+9,{x,-5}]
>
> Out[1]= {x -> -9.}
>
> In[2]:= Head[%]
>
> Out[2]= List
>
> I can't seem to find any "normal" operations on the list which give me
> the number.
>
> Dave
>



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